A sack in your dream represents the end of a contract ("being sacked").
This dream could also represent falling asleep (being able to "hit the sack") or sexual advancement (being able to "jump into the sack"). Typically, this type of dream symbolises a setback due to external demands, whether the setback is related to your job or other resources.
You may have had a dream in which you
You've been fired from your job.
You're putting your belongings in a sack.
You come across a sack.
There are a lot of sacks.
You have a sack on your back.
You retire to your bed.
You've probably heard the phrase "hitting the sack."
If you're at ease.
You nodded off.
Dreaming about packing a sack could indicate a new pattern of affairs in your relationship. If you're packing clothes, you might appear closed-minded to your friends, but this dream could also indicate that you're preparing for an important trip. If you pack your belongings, you are likely to have a lot of worries and internal conflicts right now, but you will conquer them and find a positive solution to your problems.
In a dream, seeing yourself packing a sack indicates an indication of significant changes to come. It could also relate to your decision to put the past behind you and concentrate on the present. In a dream, packing and unpacking a sack indicates that you must cope with the confusion in your life. Something is undoubtedly overwhelming you right now because you are juggling far too many things and circumstances, as well as bearing far too many burdens. Sacks in a dream are a warning to relax and let go.